While playing an increasing role in the field of air-space integrated networks,terminal entities are exposed to more serious security risks than ordinary terminal entities on the ground,including but not limited to as...While playing an increasing role in the field of air-space integrated networks,terminal entities are exposed to more serious security risks than ordinary terminal entities on the ground,including but not limited to astronomical risks(e.g.,solar activity),link disruptions,and malicious attacks.In the integrated air-space-space network,after the terminal entity is loaded into the rocket for launch,real-time monitoring measures are implemented on the ground site for all links to the intended orbit.On top of the real-time monitoring measures,the need for a comprehensive evaluation of the air-space integration network is growing.In this paper,we further classify the security requirements and evaluation benchmarks of the terminal entities of the air-space integration network around the security evaluation requirements of the air-space integration network.On this basis,the relevant concept of trust value is introduced to assess the security status of terminal entities of air-space-sky integrated networks,and on this basis,a security assessment system of air-space-sky integrated network terminals is proposed.The exploration and development of field applications are initially realized.展开更多
研究基于低轨星座网络的空天地一体化无线光通信资源动态调度方法,高效精准分配其通信资源,保障资源利用率与通信效率。结合软件定义网络(Software Defined Network,SDN),设计空天地一体化无线光通信网络,构建包含数据转发平面与控制平...研究基于低轨星座网络的空天地一体化无线光通信资源动态调度方法,高效精准分配其通信资源,保障资源利用率与通信效率。结合软件定义网络(Software Defined Network,SDN),设计空天地一体化无线光通信网络,构建包含数据转发平面与控制平面的低轨星座网络,通过转发平面传输通信业务,由控制平面结合遗传-粒子群算法,动态调度空天地一体化无线光通信网络的通信资源。结果表明,该方法可实现空天地一体化无线光通信网络资源的动态调度,资源的综合利用率较高、通信时延较低,调度效果显著,可为网络的整体通信质量提升提供保障。展开更多
基金This work was supported in part by the National Natural Science Foundation of China(No.1936122)the Shanghai Aerospace Science and Technology Innovation Fund(No.2019SAST-098).
文摘While playing an increasing role in the field of air-space integrated networks,terminal entities are exposed to more serious security risks than ordinary terminal entities on the ground,including but not limited to astronomical risks(e.g.,solar activity),link disruptions,and malicious attacks.In the integrated air-space-space network,after the terminal entity is loaded into the rocket for launch,real-time monitoring measures are implemented on the ground site for all links to the intended orbit.On top of the real-time monitoring measures,the need for a comprehensive evaluation of the air-space integration network is growing.In this paper,we further classify the security requirements and evaluation benchmarks of the terminal entities of the air-space integration network around the security evaluation requirements of the air-space integration network.On this basis,the relevant concept of trust value is introduced to assess the security status of terminal entities of air-space-sky integrated networks,and on this basis,a security assessment system of air-space-sky integrated network terminals is proposed.The exploration and development of field applications are initially realized.
文摘研究基于低轨星座网络的空天地一体化无线光通信资源动态调度方法,高效精准分配其通信资源,保障资源利用率与通信效率。结合软件定义网络(Software Defined Network,SDN),设计空天地一体化无线光通信网络,构建包含数据转发平面与控制平面的低轨星座网络,通过转发平面传输通信业务,由控制平面结合遗传-粒子群算法,动态调度空天地一体化无线光通信网络的通信资源。结果表明,该方法可实现空天地一体化无线光通信网络资源的动态调度,资源的综合利用率较高、通信时延较低,调度效果显著,可为网络的整体通信质量提升提供保障。
